Astonishing Simple 'Caramel' !
Remove the tins label. Then put the unopened tin into a very large pot of water. Enough water to ensure the tins top remains covered at all times.
Raise the heat until the water boils.
Maintain a 'simmering boil' for four hours (4 - not a misprint) . Top up the water as needed over the period, to retain tin top coverage.
Four hours cooking produces a solid, yet spreadably soft 'caramel', when the tin is opened. Less cooking time will result in a more syrupy 'caramel'.
When the cooking time is up, carefully empty the hot water from the pot. Remove the tin with kitchen gloves or tongs and place on a tray to cool.
When cooled refrigerate your tin overnight.
Next morning, cut the top from the tin. Invert the tin over a plate. Cut the upward-facing (other) end off the tin. Slide or push out your new cylinder of 'caramel'.
Voila! Your 1000-calorie confectionery is produced. Enjoy as you please.
Warning - It IS incredibly rich AND sweet.
This 'caramel' can be batch-produced, 'Lucky Dog". Which saves both time and gas, or electricity. Meaning simply have multiple tins 'cooked together' in one big pot; just as long as you always keep them well covered in water.
Enjoy!